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Mastering Cursor

The AI-Native IDE

CAIO INCAU

The definitive guide to Cursor, the AI-native IDE used by half the Fortune 500. From tab completion to Agent Mode, from .cursorrules to Composer — 14 chapters covering everything developers need to master the IDE that thinks with you.

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About

About

About the Book

Cursor has 18% developer market share, is used by half the Fortune 500, and is valued at $60 billion. It's not just another code editor — it's the IDE that thinks with you.

But most developers use 20% of what Cursor can do.

This book covers everything: from installation to Agent Mode, from tab completion to multi-file editing with Composer, from .cursorrules to custom model configuration. Written by a developer who switched from VS Code and never looked back.

You'll learn:

- Tab completion that predicts multi-line changes, not just the next word

- Chat (Cmd+L) and Inline Edit (Cmd+K) — when to use each and why

- Composer: edit multiple files simultaneously with one prompt — the killer feature

- @file, @folder, @codebase, @web, @docs — how to give Cursor the right context

- .cursorrules: encode your project's conventions so AI follows your patterns

- Agent Mode: autonomous coding where Cursor plans, executes, and iterates

- Working with large codebases: indexing, semantic search, refactoring at scale

- TDD workflows, test generation, and debugging with AI assistance

- Git integration: commits, PRs, and AI-assisted code review

- Custom models: Claude, GPT, local models — cost management and model selection

- Cursor vs Claude Code vs Copilot: when to use each

14 chapters with real code examples in Python, TypeScript, and JavaScript. Each chapter includes common mistakes and practical exercises.

Whether you're migrating from VS Code or optimizing your existing Cursor setup, this is the definitive guide.

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About the Author

CAIO INCAU

aio Incau é Engineering Manager com experiência liderando times de engenharia de software em larga escala. No dia a dia, combina gestão de pessoas com profundidade técnica para entregar produtos que impactam milhões de usuários. Começou a usar Claude Code por curiosidade, virou adepto por produtividade, e escreveu este livro para que outros desenvolvedores não precisem descobrir tudo sozinhos.                

                                                                                                                              

Contents

Table of Contents

  • Preface
  • Part I — Foundations
    • Chapter 1 — Why Cursor?
    • Chapter 2 — Installation and Setup
    • Chapter 3 — Tab Completion on Steroids
    • Chapter 4 — Chat and Inline Editing
  • Part II — Intermediate
    • Chapter 5 — Composer: Multi-File Editing
    • Chapter 6 — Codebase Context and @-Mentions
    • Chapter 7 — .cursorrules: Project-Level AI Config
    • Chapter 8 — Agent Mode
  • Part III — Advanced
    • Chapter 9 — Working with Large Codebases
    • Chapter 10 — Testing with Cursor
    • Chapter 11 — Debugging with AI
    • Chapter 12 — Git Integration and Code Review
  • Part IV — Expert
    • Chapter 13 — Custom Models and API Keys
    • Chapter 14 — Cursor vs Claude Code vs Copilot

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